background image

Figure 5 LAT–C Pivot Mechanism, Leg Assembly, and Crossovers

continued

17

M1

M1

M13M13

P25003

P25003

P2P2

C10

C10

C9

C9

IN -

IN -

M2

M2

M3

M3

L1 L1

M4

M4

M5

M5

R10

R10

R9

R9

M6M6

M6M6

M21

M21

M6

M6

OUT -

OUT -

P6 P6

Krell industries (c) June, 2000

Krell industries (c) June, 2000

C8

C8

C7

C7

C5

C5

C6

C6

C2

C2

P1P1

IN +

IN +

C3

C3

C4

C4

C1

C1

M7

M7

R5

R5

R8

R8

R7

R7

R4

R4

R6

R6

R3

R3

C11

C11

C12

C12

C16

C16

C17

C17

C13

C13

C15

C15 
C14

C14

R2

R2

R1

R1

L2 L2

R12

R12

R13

R13

R14

R14

R11

R11

C19

C19

C20

C20

C18

C18

OUT +

OUT +

C23

C23

C22

C22

C21

C21

C24

C24

P5 P5

M8

M8

P3 P3

P4 P4

M9

M9

M11

M11

M10

M10

M13M13

M20

M20

M22

M22

M12

M12

M12

M12

M20

M20 M6

M6

M23

M23

M2

M2

M20

M20 M6

M6

M23

M23

M3

M3

P25002

P25002

M20

M20 M6

M6

M23

M23

M4

M4

P2 P2

C8

C8

C2

C2

Krell industries (c) June, 2000

Krell industries (c) June, 2000

IN -

IN -

M20

M20 M6

M6

M23

M23

M7

M7

M4

M4

M20

M20 M6

M6

M23

M23

M8

M8

C16C16

C17

C17

C14

C14

C21

C21

C20

C20

L1 L1

C23

C23

C24

C24

C25

C25

C22

C22

M20

M20 M6

M6

M23

M23

M9

M9

R12

R12

R13

R13

R14

R14

M20

M20 M6

M6

M23

M23

M16

M16

M6

M6

C33

C33

C7

C7

C6

C6

C11

C11

C12

C12

C5

C5

IN +

IN +

C1

C1

P1 P1

C10

C10

C9

C9

M6

M6

M6

M6

M23

M23

M10

M10

M23

M23

M6

M6

M6

M6

M23

M23

M12

M12

C18C18

C15

C15

C19

C19

C4

C4

L4 L4

R1

R1

R2

R2

R3

R3

C3

C3

C13

C13

R5

R5

R4

R4

R6

R6

L3 L3

M6

M6

M23

M23

M13

M13

M12

M12

M6

M6

M23

M23

M14

M14

M6

M6

R8

R8

R10

R10

R11

R11

R9

R9

M23

M23

M15

M15

M6

M6

M6

M6

M23

M23

M17

M17

R7

R7

M23

M23

M6

M6M20M20

R15

R15

R16

R16

M22

M22

M12

M12

R19

R19

R18

R18

R20

R20

R17

R17

C32

C32

P6 P6

P4 P4

OUT -

OUT -

C26

C26

OUT +

OUT +

C29

C29

C31

C31

C28

C28

C27

C27

P5 P5

C30

C30

P3 P3

M6

M6

M23

M23

M6

M6

M23

M23

M23

M23

M19

M19

M20

M20

M23

M23

M18

M18

M6M6

M6M6

P3P3

M5M5

P4P4

P5P5

OUT -OUT -

L2L2

M4M4

P25001P25001

M3M3

Krell industries (c) June, 2000Krell industries (c) June, 2000

M2M2

M1M1

P1P1

IN +IN +

P6P6

C4C4

P7P7

OUT +OUT +

P8P8

C3C3

R1R1

R3R3

R2R2

C1C1

C9C9

C8C8

C7C7

C2C2

C6C6

L1L1

M13M13

M12M12

R5R5

M11M11

R4R4

R6R6

M10M10

IN -IN -

P2P2

M9M9

M8M8

C5C5

49

50

47

48

51

47 High pass Crossover
48 Band pass Crossover
49 Low pass Crossover

50 Midrange/Tweeter 

Sub-enclosure 
(gray area)

51 Loudspeaker Binding 

Posts

39

42

43

43

36

39

41

46

45

44

46

45

44

37

43

40

42

38

36 Cap
37 Pivot Hole
38 Pivot Pad
39 Shoulder Screw
40 Shoulder Screw Hole
41 Locator Bolt

42 Locator Bolt Hole
43 Locator Holes
44 Socket Head Cap Screws
45 Screw Holes on Foot
46 Screw Holes on Leg

Summary of Contents for LAT series

Page 1: ...O W N E R S R E F E R E N C E L A T T H E L A T S E R I E S L O S S L E S S A C O U S T I C T R A N S D U C E R S ...

Page 2: ...he low voltage directive 73 23 EEC This product is manufactured in the United States of America Krell is a registered trademark of Krell Industries Inc and is restricted for use by Krell Industries Inc its subsidiaries and authorized agents Krell CAST Krell Current Mode Krell HEAT and LAT are trademarks of Krell Industries Inc All rights reserved All other trademarks and tradenames are registered ...

Page 3: ...rms SECTION TWO Unpacking and Placement page 7 Opening the LAT 1 and the LAT C Shipping Crate Opening the LAT 2 Shipping Box SECTION THREE Anatomy of a Loudspeaker page 14 Features and Benefits of the LAT Design SECTION FOUR Connecting a LAT Series Loudspeaker to Your System page 22 SECTION FIVE Krell HEAT Home Theater Technology page 23 WARRANTY page 25 RETURN AUTHORIZATION PROCEDURE page 27 ...

Page 4: ...rill Figure 3 page 15 LAT 1 Back and Side Panels Figure 4 page 16 LAT C Front Panel and Grill Figure 5 page 17 LAT C Pivot Mechanism Leg Assembly and Crossovers Figure 6 page 18 LAT 2 Front Panel and Grill Figure 7 page 19 LAT 2 Back and Side Panels Figure 8 page 24 A Krell HEAT Home Theater System Placement Scenario ...

Page 5: ... expectations of those listeners Loudspeakers are an integral link in an audio system With the right loudspeakers you hear music with its original definition precision and clarity Krell s lossless technology combines the benefits of enclosure design materials selection and electronics design and configuration to ensure that you hear music exactly as it was recorded nothing more nothing less With t...

Page 6: ...T has made this dream a reality When I looked for but could not find a loudspeaker that offered the impact immediacy and resolution of CAST components I decided to build one myself The first Krell loudspeaker the LAT 1 uses the best of acoustical engineering elec trical engineering and materials science to enhance music reproduction I have taken care at every turn to ensure that every part of a LA...

Page 7: ...dustry The most discriminating audiophiles and product reviewers have consistently recognized Krell components for standard setting performance The Lossless Acoustic Transducer LAT represents the next era at Krell Industries the era of loudspeaker design and manufacture which will join the ongoing legacy of Krell amplifiers For two decades Krell C E O Dan D Agostino has built amplifiers legendary ...

Page 8: ...d LAT C loudspeakers in a home theater system Crossover enclosure and driver technologies used in the LAT 1 have been applied to the design of the LAT 2 Unparalleled Sonic Performance From the first Krell product the KSA 100 to the present Dan D Agostino has continually pushed the envelope of performance in his search for greater amplifier power and now loudspeaker response His exploration of tech...

Page 9: ...eeter together on a single circuit board Each printed circuit board for a LAT loudspeaker is fashioned of 1 8 inch fiberglass with 4 ounce copper traces for superior current flow Air core inductors and banks of potted WIMA capacitors ensure tight tolerances and high linearity during high power levels Enclosure Continuing in the tradition of the Master Reference Subwoofer a LAT Series loudspeaker e...

Page 10: ...losure features wall thickness ranging from 0 75 to 1 0 inch The curvature of the cabinets is designed to absolutely minimize the effects of internal standing waves and external high frequency diffraction The vented cabinet of the LAT 2 features two rear bass ports Resembling the LAT 1 ports in design the LAT 2 ports are precisely dimensioned flared and positioned with respect to the woofer to eli...

Page 11: ...state of the art Krell preamp processor and matching amplifiers and loud speakers that reproduce two channel and multi channel sources with audiophile sound quality placing listeners in the middle of a lifelike environment The crossover consists of a dedicated circuit board for each group of drive units woofers midranges and tweeters Each crossover network employs impedance correction circuitry th...

Page 12: ... LAT C loudspeaker mea sures 40 9 in 103 cm wide by 12 in 30 48 cm high by 15 in 38 1 cm deep with an estimated weight of 200 lbs 90 9 kg Krell recommends that you have three to four people to safely move the loudspeaker to its place in the listening area Two people are needed to remove the shipping crate top from its base The shipping crate is specially designed to open safely and easily The LAT ...

Page 13: ...o the top of the grill box 4 Lift the grill box off the loudspeaker and set aside 1 person needed 5 Carefully lift the loudspeaker out of the crate do not remove the protective sleeve at this time and place it on the floor 3 4 people needed In the LAT 1 grill box with the grill you will find 4 stainless steel spikes 1 bubble level 2 binding post knobs 1 7 16 in nut driver In the LAT C grill box yo...

Page 14: ...ft the cardboard cap straight up and off the shipping box exposing the interior cardboard box a shallow box with generous flaps The flaps are secured by plastic strapping A packet containing the Owner s Reference and warranty card is affixed to a top layer of foam packing 4 Cut the band of plastic strapping and fold the flaps open 5 Remove the top layer of foam packing exposing the LAT 2 in its pr...

Page 15: ...stage that is both deep and wide with little or no toe in required Figure 1 on page 11 illustrates a representative placement scenario Note the position of the loudspeakers with respect to the rear and side walls The closer a loudspeaker is to the rear wall the more pronounced the bass response To minimize unwanted reflected sound and maximize the width and depth of the soundstage be careful not t...

Page 16: ...1 Two Channel LAT Placement Scenario 1 3 2 1 Left Front Loudspeaker 2 Right Front Loudspeaker 3 Optimum Listening Position A representative placement scenario for a pair of LAT 1 loudspeakers or a pair of LAT 2 loudspeakers ...

Page 17: ...l the grill locator pins align with the two holes on the loudspeaker cap 6 Gently guide the pins into the holes You hear a click when the grill is in place Note Be careful not to scratch the surface of the loudspeaker with the grill locator pins To Detach the Loudspeaker Grill The loudspeaker grill remains in place while you play music However if you wish to move the loudspeaker first detach the l...

Page 18: ... back just enough to insert the front stationary spike no knob IMPORTANT Two people are needed to safely tilt the loudspeaker to install the front stationary spike 4 Turn the front spike by hand until it is secure do not over tighten 5 Place the bubble level on the loudspeaker cap 6 Adjust the rear articulating spikes until the bubble indicates the loudspeaker is level To Install the Foot Leg and ...

Page 19: ...l 1 11 13 13 2 4 5 5 6 9 10 3 7 8 14 14 14 14 14 14 12 15 15 1 Cap 2 Midrange Tweeter Sub enclosure gray area 3 D Appolito Array 4 Driver Tweeter 5 Driver Midrange 6 Cabinet Material 7 Braces dark gray area 8 Proprietary Drivers Woofers 9 Spikes 10 Base 11 Grill 12 Grill Bar 13 Grill Block 14 Grill Hole 15 Grill Locator Pins ...

Page 20: ...5 P4 P2 M8 M9 IN M1 M2 P1 L1 IN OUT OUT R19 R20 M22 M12 OUT P6 P4 OUT C29 C30 P3 P5 M16 R17 R18 M18 R15 R16 M20 R12 R13 R14 C33 C32 C31 C28 C27 L3 C26 R10 R9 R11 M9 L1 M7 M8 M4 M4 C21 C20 C22 C23 C24 C25 C16 C17 C14 R8 R5 L4 R1 R2 R3 R4 R6 R7 C18 C15 C19 C4 C3 C13 M3 P25002 M2 IN C2 P2 C8 C11 C12 C10 C9 C1 P1 C7 C5 IN C6 Krell industries c June 2000 M23 M6 M17 M19 M21 M13 M14 M12 M12 M10 M6 M15 16...

Page 21: ...Grill 35 28 28 32 32 29 30 30 34 26 26 24 24 33 35 34 26 26 33 27 25 27 31 24 Grill 25 Grill Block 26 Grill Hole 27 Grill Locator Pin 28 Proprietary Driver Woofer 29 Midrange Tweeter Sub enclosure gray area 30 Driver Midrange 31 Driver Tweeter 32 Cabinet Material 33 Cap 34 Leg 35 Foot ...

Page 22: ... P1 P1 C10 C10 C9 C9 M6 M6 M6 M6 M23 M23 M10 M10 M23 M23 M6 M6 M6 M6 M23 M23 M12 M12 C18 C18 C15 C15 C19 C19 C4 C4 L4 L4 R1 R1 R2 R2 R3 R3 C3 C3 C13 C13 R5 R5 R4 R4 R6 R6 L3 L3 M6 M6 M23 M23 M13 M13 M12 M12 M6 M6 M23 M23 M14 M14 M6 M6 R8 R8 R10 R10 R11 R11 R9 R9 M23 M23 M15 M15 M6 M6 M6 M6 M23 M23 M17 M17 R7 R7 M 2 3 M 2 3 M6 M6M 2 0 M20 R15 R15 R16 R16 M22 M22 M12 M12 R19 R19 R18 R18 R20 R20 R17 ...

Page 23: ...y of a Loudspeaker continued Figure 6 LAT 2 Front Panel and Grill 52 Cap 53 Driver Tweeter 54 Driver Woofer 55 Cabinet Material 56 Base 57 Grill 58 Grill Bar 59 Grill Locator Pin 60 Grill Hole 55 52 56 53 54 57 58 60 60 59 59 ...

Page 24: ...Figure 7 LAT 2 Back and Side Panels continued 19 62 65 64 62 61 63 64 61 Ribbed Configuration 62 Multi port Design 63 Logo Label 64 Loudspeaker Binding Posts 65 High pass Low pass Crossover gray area ...

Page 25: ... signal linearity while minimizing resistance and inductance High current polypropylene film capacitors are used exclusively in the audio signal path Similarly the resistors in the crossover networks are connected in parallel to mini mize parasitic inductance and maximize current capacity and power dissipation Oversized high power metal oxide and wirewound resistors are used exclusively All the in...

Page 26: ...um box that separates them from the woofers and each unit is bolted to the back of the baffle Standing waves are eliminated because the midrange and woofer boxes minimize parallel surfaces and because the baffle s aluminum structure absorbs vibrations The result is clear distinct sound in high mid and low frequencies Multi port Design In the LAT 1 and LAT 2 the computer optimized multi port design...

Page 27: ...ng intro duced into the system 3 Locate the loudspeaker binding posts on the LAT back panel 4 Connect the loudspeaker cable from the positive binding post on the LAT to the positive channel output on the amplifier Connect the loudspeaker cable from the negative binding post on the LAT to the negative channel output on the amplifier IMPORTANT Do not disconnect signal cables when the amplifier is on...

Page 28: ...ered conversation to the roar of a jet take off The soundtrack plays a key role in the action seen on the screen and its content is becoming increasingly complex with each theatrical release LAT loudspeakers address the demands of these soundtracks in three ways superior power handling ultra fast response and high resolution at low levels Krell HEAT provides an electronic transcription of the sour...

Page 29: ...Krell HEAT Home Theater Technology continued 1 8 2 5 6 7 3 4 1 Left Front Loudspeaker LAT 1 2 Right Front Loudspeaker LAT 1 3 Master Reference Subwoofer 4 Center Loudspeaker LAT C 5 Screen 6 Left Rear Loudspeaker LAT 2 7 Right Rear Loudspeaker LAT 2 8 Optimum Listening Position ...

Page 30: ... period must be presented to obtain warranty service The warranty begins on the date of the original retail purchase as noted on the bill of sale or receipted invoice from an authorized Krell dealer or distribu tor Previously owned equipment when re purchased from an authorized Krell dealer or distributor has the balance of the original warranty based on the origi nal date of manufacture The warra...

Page 31: ...any Krell product damaged by accident abuse misuse natural or personal disaster or unauthorized modification Any disassembly component replacement perforation of chassis updates or modifications performed to the unit will void the warranty In the event that Krell receives a product for warranty service that has been modified in any way without Krell authorization all warranties on that product wil...

Page 32: ... Service Department have been made in advance Proof of purchase will be required for warranty validation at the time of hand delivery IMPORTANT Use the original packaging to ensure the safe transit of the product to the factory dealer or distributor Krell may at its discretion return a product in new packaging and bill the owner for such packaging if the product received by Krell was boxed in nons...

Page 33: ...KRELL INDUSTRIES INC 45 CONNAIR ROAD ORANGE CT 06477 3650 USA ...

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